Found more info tonight:
Found 1910 Census for Parker family. Name was misspelled. see: http://search.ancestry.com/iexec?htx=View&r=an&dbid=...
By 1910, Lillian had 4 children, but the 1910 census lists that she had 5 living children out of a total of 8 pregnancies. However it only listed 4. They are Raymond (ab1899), Mary Ann (Annie/Anna, 1900-1991), Daisy (about 1902), Thomas E (ab 1904), and William (ab 1908). After 1910, there was Elizabeth (ab 1911), Lewis (1912), Knighton (1915-1982), Louise (1917), Gilbert (1919-1978), and Walbert (1922-2006).
Daisy and Mary Ann were relatively close, compared with other siblings. According to my dad, Daisy married a man, first name Preston-doesn't remember last name. Thought I found them in Florida but not sure. Will keep working.
Can definitely confirm now that "Mae Parker" is not Mary Ann Parker. My father, (Mary Ann's grandson) confirmed it. There is about 16 years difference between Mary Ann and Louise and there doesn't appear to be that much age difference between these women.
Found out who Mae Parker is, I think: Lewis Parker (b. 1912), Louise's older brother, married Esta Mae Parker (b. 1916). They were basically the same age- might have been friends? See Esta Mae Parker's profile on my family tree.
Her gravesite (buried with Lewis in 1980):http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=45...
As of 1940, they had two children, Lois Diane Parker b about 1936, and Lewis Edward JR. b about 1938.
See 1940 census, but search under Louis B Parker. Census takers got the name wrong...again.
Will keep working on this.
Nice to speak with you today!